Security Basics: Sizing the Information Security Department

[k7.fantr () gmail com]

Hello all.

I am preparing a business case for increasing the size of the Information Security department at the company where I 
work. This is a smaller company with about 700 employees. Right now, I am the security department. :) - I am asking to 
hire 3 security professionals to augment my load and to allow me to focus on more of the strategic needs and higher 
level analysis.

My question is this: Do any of you know of any published recommendations regarding the size of a security department 
based on company size? Any guidance in this regard is appreciated.

Thanks in advance!